Methoxy-dimethyl-octadecylsilane CAS 71808-65-6

Purity 97%+In StockPharmaceutical Standards
CAS No.71808-65-6
Molecular FormulaC21H46OSi
Molecular Weight342.67 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methoxy-dimethyl-octadecylsilane CAS 71808-65-6 chemical structure

Description

Owing to a hydroxyl group, an ether linkage, Methoxy-dimethyl-octadecylsilane is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 342.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Methoxy-dimethyl-octadecylsilane (CAS 71808-65-6), molecular formula C21H46OSi and molecular weight 342.67 g/mol, is a CATO reference standard with documented purity and traceability.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

As a certified reference material (CRM), Methoxy-dimethyl-octadecylsilane meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC21H46OSi
Molecular Weight342.67 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)-1.0
CAS Registry Year (est.)1977

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Why CATO?